Vulnerability identifier: #VU14311

Vulnerability risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-401

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Kaspersky Secure Connection
Server applications / Remote access servers, VPN

Vendor: Kaspersky Lab

Description
The vulnerability allows a remote attacker to obtain potentially sensitive information on the target system.

The weakness exists due to DNS Address leak even after the victim is connected to any virtual server. A remote attacker can cause an unencrypted DNS query to be sent by the affected system OUTSIDE the established VPN tunnel and obtain names of the visited websites and public IP-addresses.

Mitigation
Update to version 1.4.0.453.

Vulnerable software versions

Kaspersky Secure Connection: All versions

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External links
http://www.inputzero.io/2018/08/kaspersky-vpn-leaks-dns-address.html

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.